Pb LibVirt DNSMasq DNS port 53 (TCP/UDP)

$ sudo lsof -i UDP:53
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
dnsmasq 3461 nobody 6u IPv4 27341 0t0 UDP poste1.local:domain

$ ps -p 3461 -f
UID PID PPID C STIME TTY TIME CMD
nobody 3461 1 0 11:00 ? 00:00:00 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsmasq/default.conf --dhcp-script=/usr/lib/libvirt/libvirt_leaseshelper

/var/lib/libvirt/dnsmasq/default.conf

##WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE ##OVERWRITTEN AND LOST. Changes to this configuration should be made using: ## virsh net-edit default ## or other application using the libvirt API. ## ## dnsmasq conf file created by libvirt strict-order pid-file=/var/run/libvirt/network/default.pid except-interface=lo bind-dynamic interface=virbr0 dhcp-range=192.168.122.2,192.168.122.254 dhcp-no-override dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases dhcp-lease-max=253 dhcp-hostsfile=/var/lib/libvirt/dnsmasq/default.hostsfile addn-hosts=/var/lib/libvirt/dnsmasq/default.addnhosts
virsh -c qemu:///system net-edit default